An anti-electromagnetic interference device for marine electromagnetic flowmeter

Abstract

The utility model relates to the technical field of electromagnetic flowmeters, and discloses an anti-electromagnetic interference device for a marine electromagnetic flowmeter, including a pipeline, wherein protective covers are provided on both the left and right sides of the pipeline, and the top and bottom of the protective cover are fixedly connected to two fixing plates, and bolts are passed through and provided on the right sides of the fixing plates, and a support plate is fixedly connected to the right side of the protective cover, and a motor is fixedly connected to the front side of the support plate, and a rotating shaft is fixedly connected to the output end of the motor, and a grounding wire is provided on the outer ring of the rotating shaft, and a grounding block is fixedly connected to the bottom of the grounding wire, and a fixing mechanism is provided on the top of the pipeline. In the utility model, by merging two protective covers together, and then fixing the protective covers by bolts and nuts, and then driving the rotating shaft to rotate by the motor, the grounding wire drives the grounding block to move downward, so that the grounding block contacts the ground, thereby eliminating the static electricity generated inside the electromagnetic flowmeter.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic flowmeters, in particular to an anti-electromagnetic interference device for a marine electromagnetic flowmeter. Background Art

[0002] Electromagnetic flowmeter is an instrument used to measure the flow rate of conductive liquids. It works based on the Faraday electromagnetic induction principle, measuring the electromotive force generated when a conductor (such as water) passes through a magnetic field, thereby inferring the flow rate of the fluid. Marine electromagnetic flowmeters have important application value in the fields of ships, offshore platforms, etc., and can provide important flow rate and flow data to support the safe operation and fuel management of ships, and also help improve the energy-saving and environmental protection performance of ships.

[0003] After searching, the existing Chinese patent announcement number is: CN219675188U, which provides an anti-interference electromagnetic flowmeter. The outside of the patented electromagnetic flowmeter body is provided with a protective shell made of anti-magnetic interference material, which can prevent the electromagnetic flowmeter inside it from being electromagnetically interfered with and ensure the normal use of the flowmeter. At the same time, the connecting components thereon are fixed by using a limit rod and a rotating rod. No external tools are required during disassembly and assembly, which is convenient to use. In addition, due to the use of a U-shaped groove in combination with a rotating rod hinged on the first fixed block, compared with traditional bolt and nut fixings, it can effectively save assembly and disassembly time and improve disassembly and assembly efficiency.

[0004] Although the above patent can prevent the electromagnetic flowmeter inside it from being affected by electromagnetic interference and ensure the normal use of the flowmeter, and the connecting components thereon are fixed by means of a limit rod and a rotating rod, and no external tools are required for disassembly and assembly, the above-mentioned anti-interference electromagnetic flowmeter still has the following problems: the device has no grounding structure, and when the electromagnetic flowmeter is in use, static electricity is easily generated inside, which will interfere with the electromagnetic flowmeter.

[0005] In view of the above problems, a device for preventing electromagnetic interference of a marine electromagnetic flowmeter is proposed. Utility Model Content

[0006] The utility model aims to provide an anti-electromagnetic interference device for a marine electromagnetic flowmeter, which solves the problem that static electricity is easily generated inside the electromagnetic flowmeter when it is in use due to the lack of a grounding structure in the background technology, causing interference to the electromagnetic flowmeter.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-electromagnetic interference device for a marine electromagnetic flowmeter, comprising a pipeline, a protective cover is provided on both the left and right sides of the pipeline, two fixing plates are fixedly connected to the top and bottom of the protective cover, bolts are penetrated and provided on the right side of the fixing plate, a support plate is fixedly connected to the right side of the protective cover, a motor is fixedly connected to the front side of the support plate, a rotating shaft is fixedly connected to the output end of the motor, a grounding wire is provided on the outer ring of the rotating shaft, a grounding block is fixedly connected to the bottom of the grounding wire, and a fixing mechanism is provided on the top of the pipeline;

[0008] By adopting the above technical solution, two protective covers are merged together. The material of the protective covers is aluminum alloy, which can effectively prevent the influence of external electromagnetic interference. The protective covers are then fixed with bolts and nuts. The motor then drives the shaft to rotate, so that the grounding wire drives the grounding block to move downward, so that the grounding block contacts the ground, thereby eliminating the static electricity generated inside the electromagnetic flowmeter.

[0009] As a further description of the above technical solution: the fixing mechanism includes a sleeve, a connecting column is slidably connected to the top of the sleeve, the top of the connecting column is fixedly connected to the electromagnetic flowmeter body, four fixing columns are fixedly connected to the outer ring of the connecting column, the inner wall of the fixing column is fixedly connected to a spring, the other end of the spring is fixedly connected to a limit column, and the limit column and the sleeve are penetrated and slidably connected;

[0010] By adopting the above technical solution, the electromagnetic flowmeter is fixed by sliding the connecting column into the sleeve, and then the spring in the fixing column makes the connecting column slide into the hole on the inner wall of the sleeve, thereby facilitating the fixing and disassembly of the electromagnetic flowmeter.

[0011] As a further description of the above technical solution: four slide grooves are provided on the top of the sleeve, and the fixing column can slide in the slide grooves;

[0012] By adopting the above technical solution, the fixing column slides in the sliding groove, so that the connecting column can slide into the sleeve.

[0013] As a further description of the above technical solution: the front and rear sides of the pipeline are fixedly connected with flanges, and the front and rear sides of the flange are provided with four connection holes;

[0014] By adopting the above technical solution, the pipeline is connected with the pipeline on the ship through the flange and the connecting hole.

[0015] As a further description of the above technical solution: an observation window is fixedly connected to the top left side of the protective cover;

[0016] By adopting the above technical solution, the value of the electromagnetic flowmeter can be observed through the observation window.

[0017] As a further description of the above technical solution: baffles are fixedly connected to the tops of the left and right sides of the inner wall of the protective cover;

[0018] By adopting the above technical solution, the sleeve is protected by the baffle to prevent dust from entering the sleeve.

[0019] As a further description of the above technical solution: nuts are passed through and threadedly connected to the left sides of the outer rings of the bolts;

[0020] By adopting the above technical solution, the fixing plate is fixed by bolts and nuts.

[0021] As a further description of the above technical solution: fixing holes are provided on both sides of the fixing plate, and bolts can be slid into the fixing holes.

[0022] By adopting the above technical solution, the bolts are slid into the fixing holes and then the fixing plates are fixed by the bolts and nuts.

[0023] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0024] 1. The utility model provides an anti-electromagnetic interference device for a marine electromagnetic flowmeter. First, two protective covers are combined together. The aluminum alloy protective cover has a good shielding effect and can effectively prevent the influence of external electromagnetic interference. Then the protective cover is fixed by bolts and nuts. Then, the motor drives the shaft to rotate, so that the grounding wire drives the grounding block to move downward, so that the grounding block contacts the ground, thereby eliminating the static electricity generated inside the electromagnetic flowmeter.

[0025] 2. The utility model provides an anti-electromagnetic interference device for a marine electromagnetic flowmeter, which fixes the electromagnetic flowmeter by sliding the connecting column into the sleeve, and then the spring in the fixing column makes the connecting column slide into the hole on the inner wall of the sleeve, thereby facilitating the fixing and disassembly of the electromagnetic flowmeter. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0027] Figure 2 It is a right view of the utility model;

[0028] Figure 3 This is a schematic diagram of the protective cover structure of the utility model;

[0029] Figure 4 This is a schematic diagram of the sleeve structure of the utility model.

[0030] In the figure: 1. pipeline; 2. protective cover; 3. fixing plate; 4. bolt; 5. observation window; 6. nut; 7. support plate; 8. rotating shaft; 9. motor; 10. grounding wire; 11. grounding block; 12. connecting column; 13. electromagnetic flowmeter body; 14. fixing column; 15. sleeve; 16. limiting column; 17. spring; 18. slide groove; 19. fixing hole; 20. flange; 21. connecting hole; 22. baffle. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0033] Combination Figure 1 and Figure 3 The utility model discloses an anti-electromagnetic interference device for a marine electromagnetic flowmeter, comprising a pipeline 1, flanges 20 are fixedly connected on both the front and rear sides of the pipeline 1, four connection holes 21 are opened on both the front and rear sides of the flange 20, nuts 6 are penetrated and threadedly connected on the left side of the outer ring of the bolt 4, fixing holes 19 are opened on both the left and right sides of the fixing plate 3, and the bolts 4 can slide into the fixing holes 19, an observation window 5 is fixedly connected to the top of the left side of the protective cover 2, and baffles 22 are fixedly connected to the top of the left and right sides of the inner wall of the protective cover 2, by merging the two protective covers 2 together, and then fixing the protective cover 2 by bolts 4 and nuts 6, the material of the protective cover 2 is aluminum alloy, and the aluminum alloy has a good shielding effect, which can effectively prevent the influence of external electromagnetic interference.

[0034] Combination Figure 2 , protective covers 2 are provided on both sides of the left and right sides of the pipeline 1, two fixing plates 3 are fixedly connected to the top and bottom of the protective cover 2, bolts 4 are penetrated and provided on the right side of the fixing plate 3, a support plate 7 is fixedly connected to the right side of the protective cover 2, a motor 9 is fixedly connected to the front side of the support plate 7, a rotating shaft 8 is fixedly connected to the output end of the motor 9, a grounding wire 10 is provided on the outer ring of the rotating shaft 8, and a grounding block 11 is fixedly connected to the bottom of the grounding wire 10. The rotating shaft 8 is driven to rotate by the motor 9, so that the grounding wire 10 drives the grounding block 11 to move downward, so that the grounding block 11 contacts the ground, thereby eliminating the static electricity generated inside the electromagnetic flowmeter and reducing interference to the electromagnetic flowmeter.

[0035] Combination Figure 4A fixing mechanism is provided at the top of the pipeline 1, and the fixing mechanism includes a sleeve 15. A connecting column 12 is slidably connected to the top of the sleeve 15. The top of the connecting column 12 is fixedly connected to the electromagnetic flowmeter body 13. Four fixing columns 14 are fixedly connected to the outer ring of the connecting column 12. The inner wall of the fixing column 14 is fixedly connected to a spring 17. The other end of the spring 17 is fixedly connected to a limiting column 16, and the limiting column 16 penetrates and is slidably connected to the sleeve 15. Four sliding grooves 18 are opened on the top of the sleeve 15, and the fixing column 14 can slide in the sliding groove 18, slide the connecting column 12 into the sleeve 15, and then slide the connecting column 12 into the hole on the inner wall of the sleeve 15 through the spring 17 in the fixing column 14, so as to fix the electromagnetic flowmeter, thereby facilitating the fixing and disassembly of the electromagnetic flowmeter.

[0036] Working principle: When the utility model is in use, the two protective covers 2 are combined together and then fixed by bolts 4 and nuts 6. The material of the protective cover 2 is aluminum alloy. Aluminum alloy has a good shielding effect and can effectively prevent the influence of external electromagnetic interference. Then, the motor 9 drives the rotating shaft 8 to rotate, so that the grounding wire 10 drives the grounding block 11 to move downward, so that the grounding block 11 contacts the ground, thereby eliminating the static electricity generated inside the electromagnetic flowmeter and reducing interference to the electromagnetic flowmeter. The connecting column 12 is slid into the sleeve 15, and then the spring 17 in the fixing column 14 is used to slide the connecting column 12 into the hole on the inner wall of the sleeve 15 to fix the electromagnetic flowmeter, thereby facilitating the fixing and disassembly of the electromagnetic flowmeter.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-electromagnetic interference device for a marine electromagnetic flowmeter, comprising a pipeline (1), characterized in that: The pipeline (1) is provided with a protective cover (2) on both the left and right sides. The top and bottom of the protective cover (2) are fixedly connected to two fixing plates (3). The right sides of the fixing plates (3) are penetrated and provided with bolts (4). The right side of the protective cover (2) is fixedly connected to a support plate (7). The front side of the support plate (7) is fixedly connected to a motor (9). The output end of the motor (9) is fixedly connected to a rotating shaft (8). The outer ring of the rotating shaft (8) is provided with a grounding wire (10). The bottom of the grounding wire (10) is fixedly connected to a grounding block (11). The top of the pipeline (1) is provided with a fixing mechanism.

2. The anti-electromagnetic interference device for a marine electromagnetic flowmeter according to claim 1, characterized in that: The fixing mechanism comprises a sleeve (15), the top of the sleeve (15) is slidably connected to a connecting column (12), the top of the connecting column (12) is fixedly connected to an electromagnetic flowmeter body (13), four fixing columns (14) are fixedly connected to the outer ring of the connecting column (12), the inner wall of the fixing column (14) is fixedly connected to a spring (17), the other end of the spring (17) is fixedly connected to a limiting column (16), and the limiting column (16) and the sleeve (15) are penetrated and slidably connected.

3. The anti-electromagnetic interference device for a marine electromagnetic flowmeter according to claim 2, characterized in that: The top of the sleeve (15) is provided with four slide grooves (18), and the fixing column (14) can slide in the slide grooves (18).

4. The anti-electromagnetic interference device for a marine electromagnetic flowmeter according to claim 1, characterized in that: The front and rear sides of the pipeline (1) are both fixedly connected with flanges (20), and the front and rear sides of the flange (20) are both provided with four connection holes (21).

5. The anti-electromagnetic interference device for a marine electromagnetic flowmeter according to claim 1, characterized in that: An observation window (5) is fixedly connected to the top of the left side of the protective cover (2).

6. The anti-electromagnetic interference device for a marine electromagnetic flowmeter according to claim 1, characterized in that: Baffles (22) are fixedly connected to the tops of the left and right sides of the inner wall of the protective cover (2).

7. The anti-electromagnetic interference device for a marine electromagnetic flowmeter according to claim 1, characterized in that: The left side of the outer ring of the bolt (4) is penetrated by a nut (6) which is threadedly connected.

8. The anti-electromagnetic interference device for a marine electromagnetic flowmeter according to claim 1, characterized in that: The fixing plate (3) is provided with fixing holes (19) on both the left and right sides, and the bolts (4) can slide into the fixing holes (19).

Images